Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3f87ae8faaf047…

MALICIOUS

PDF

324.2 KB Created: 2022-02-07 13:03:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 0d7a462267bfa782261e0eef0f8d5cd3 SHA-1: ae20fa227b729d72bf4caaa271577714bd66a0cf SHA-256: 4e3f87ae8faaf047dd5235d7e2a80c2985e45d699a6c7b47d8e6ae13c65325c9
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6303

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://loheb.co.za/XSRYdR1H?utm_term=counter+strike+zero+free++pc PDF link annotation
    • http://chandigarhdatarecovery.com/files/file/dolonolajevukubaguwijela.pdfIn PDF document text
    • http://abwfinlay.com/uploads/files/nekoxowegowubuk.pdfIn PDF document text
    • http://goldendoodlesofthesierranevadas.com/userfiles/file/laninivadugiwigojud.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1619c785051913---geripinopujusif.pdfIn PDF document text
    • http://irpuyesh.com/cache/fck_files/file/28682169195.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160eca3d8d71f6---62574800161.pdfIn PDF document text
    • http://thegioituigiay.net/uploads/files/tekubukojopire.pdfIn PDF document text
    • http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/66471344446.pdfIn PDF document text
    • http://auxerretv.com/content/public/file/58022685644.pdfIn PDF document text
    • http://sshs61.com/clients/6/60/60e739d5a8cf4a6710e4f064fd99417d/File/feguwutetezunizudakuni.pdfIn PDF document text
    • http://mms.vru.ac.th/kcfinder/upload_new/files/69349655933.pdfIn PDF document text
    • https://mmgrowersg.com/ckfinder/userfiles/files/xagaganokibazimov.pdfIn PDF document text
    • https://www.sesc-am.com.br/Selecao/ckfinder/files/24936508827.pdfIn PDF document text
    • http://ubytovani-horak.cz/files/File/bovipurenesuwojekeli.pdfIn PDF document text
    • http://weforyou.it/userfiles/files/59713194978.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/iq2nedjlvu36c7qhsru614t220/ginugibabekositalu.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/sawuxamarolinapegul.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d80f05bbb37---jimofanasujefi.pdfIn PDF document text
    • http://wolfroccatiassociati.it/userfiles/files/74629771513.pdfIn PDF document text
    • http://raffaelecavazzoni.com/userfiles/files/23843735705.pdfIn PDF document text
    • http://biosafety.biz/ckfinder/userfiles/files/mawapabajufubujoxiwukin.pdfIn PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/5c80f98b851b6110bea88d571a645bfb/39025294898.pdfIn PDF document text
    • http://presssimayeshahr.ir/pic/file/debidekuwomumuzu.pdfIn PDF document text
    • https://vcvscr.cz/www/www/fckphotos/file/47125367811.pdfIn PDF document text
    • http://www.jobsincrete.gr/images/_user_na/file/92088018278.pdfIn PDF document text
    • https://1ar.sa/userfiles/file/95875922260.pdfIn PDF document text
    • http://phuctuong.vn/images/files/82471974679.pdfIn PDF document text
    • https://purefeeling8.com/data/file/83187937217.pdfIn PDF document text
    • https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/93790477076.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16120c61e54c6e---89546088821.pdfIn PDF document text
    • http://koppeika.ru/userfiles/file/sunagatexibobanis.pdfIn PDF document text
    • https://pirkitpadangas.lt/ckfinder/userfiles/files/powedegukolojolomifen.pdfIn PDF document text
    • https://ecowaytechnologies.com/ckfinder/userfiles/files/58417124861.pdfIn PDF document text
    • https://blokhol.com/upload/files/16974984900.pdfIn PDF document text
    • http://chemonova.com/FCKeditor/file/48024608639.pdfIn PDF document text
    • http://duz-drustvo.si/uporabnik/file/84924658674.pdfIn PDF document text
    • http://asthmabd.net/journal/assets/ckeditor/kcfinder/upload/files/tufomev.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4C1 10548 bytes
SHA-256: 4a27953b1e9e5b1d89e1e18d70d457d624aef865315b5b48fdc75fa030e96ff4
font_01_sfnt_off0004bd0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD0B 17060 bytes
SHA-256: 2aa6e59285c62c6a3056ead1be621c31aab9169ded6b48e5c4af701e405b2a13
font_02_sfnt_off0004e9b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E9B0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9